Removable wheel



M. L. FYKs-E REMOVABLE WHEEL F'led'July 21 Feb. 9 1926.

A TTORNEY Patented Feb. 9, 1926.

' UNITED STATE-s PATENT OFFICE.

MITCHELL L. EYKsE, `OE MILWAUKEE, WIsCONsiN,nssreNon To nUCYRUs COM-:PANY, 01E-sourir MILWAUKEE, WIsCONsIN, A CORPORATION OE WISCONSIN.

EEMOVABLE WHEEL.

fo all `whom, t 'may concern.'

. Be it known that .MITCHELL L. FYKSE, a citizen of the United States,and` a resident of Milwaukee, in the. county OfMilwaukee and State Ofllilisconsin, have invented cer`V tain new and useful Improvements inRemovable lVheels; and I do yhereby declare that the following is afull, clear, and exact description thereof. Y

My invention relates to new improvements in removable wheels, and hasfor its principal Object to provide turntable roll-erswhich can beeasilyireinoved. Y

l have particularlyin inind turntable rollers for excavating y machineryof the sort described in co-pendi-ng; application; but it is evidentthat iny invention is equally applicable to the rollers of any sort` ofturntable, or for that matter, to any wheel .sinnlarly situated, and ofwhich the removal presents similar difficulties, or to any other wheelorA rotating body.

A turntable usually consists of a circular track, restingl on a lowerframe, a. pivot Vconcentric with said track. and disposed perpendicularto the plane thereof, andan upper fraine revolving about saidpivot andcarryingl rollersvwhich rest on said track. In the case of the turntableof a self-propelled unit, tho vcentrali pivot is usually hollow andcontains the .power shaft of the propellingl machinery. The rollersfrequently lecoine worn or broken, and so have to be removed;`

for which purpose it is usually necessary to ja-clr up the entireupperfranie, so that the rollers will be clear of the track. This methodof removal necessitates having acks available, the expenditure of agreat amount of time, and having;` a nian go inside the track betweenthe two fanies, for which small turntables do not provide suliicientrooin. i*

By the use of the within described invention, however, itis `possible toreinove any individual roller' from the outside, within the duration ofa very few minutes, and .without jacking or other disturbance of therelative position of. the otherfparts ofthe' turntable.

and useful Other advantages of the siniple design of niy roller and itssupporting .means will naturally suggest themselves as the descriptionprogresses.

lilith these general objects in view, the invent-ion resides in thenovel features of construction, combination and arrangement of partswhich will be hereinafter more particularly described 4and claimed, andshown in the acconipanying` drawings, wherein:

Figure is a vertical transverse sectional View taken centrally/,throughthe vertical power shaft of the .propellin: ,l machinery, and showingparticularlyv the .relative position of the circular track, the pivot,the upper `frame Vand one` of the rollers carried thereby. i I I Figure2 is a plan view ofthis roller and of the part of the upper framecarrying,` the saine, taken from beneath;

'.Figure 3 is .an enlargement Of the Sectional Viewof the roller asshown in the Figurefl. I i y I .Figures 4l and 5- are elevation views ofthe roller-supports shown in Figure 3, these views beingftakcn at rightangles to the positions of Figure il.

l?.eter-ringl niorc particularly to the draw'- ings, and especiallyFigure l, it will be seen that the vertical power shaft l carries on itsupper end fa bevel gear 2, which is driven by the epcratingl machinery(not shown), and

on its lower end a bevel gear 3, which drives thepropelling .machinery(not sho-wn).v

This power shaft is free to rotate inthe pivot il, which is an integralpart of the lower Vtraine 5. The upper frainc 6 is free torotiite aboutthis pivot. The lower frame carries a circular .rack 7 and arirculartrack 8, ,on which run the rollers 9.

Referring now more particularly to Figures 3 and 2, it will be seenthat, with rcspe-ct to each roller 9, there depend from the upper frame.6 two dissimilar brackets 10 and il. Bracket l0 carries an ear l2, andrests on a bushing- 13. p

The roller 9 is .free to rotate on the 'pin 14, one end of which restsiny the bushing` 18, Aand the other end of which rests in a shape of theroller 9, as it rests upon the track 8, forces it against the annularflange 18 of the bushing 13, against which it is free to rotate.

rlhe method of removal of aroller 9 is as follows: The cotter pin 17,the bolt 16 and the pin 14C are successively Withdrawn. The bushing 13then easily slips down and out between the roller 9 and the bracket 10,leaving the roller free to take the position shown-.

by the dotted lines in Figure 3, and hence to lue-removed." Theassembling of theseparts isas simple as the disassembling, theoperations merely being reversed.

From the foregoing description, taken in connection iviththeaccompanying drawings, it Will be obvious that many changes may be madein the form and proportions of the different parts of the invention andin the manner of assembling and disassembling'y thesaine, Withoutdeparting from the principal features thereof as outlined in theappended claims.

It is also obvious that my invention is unchanged if the turntable beinverted so that the track runson the. rollers, or if it be put in anyother position, since the novelty and utility of my invention lies inthe features which render it easily removable.

I claim:

1. In a turntable, the combination of a revolving frame, a track, aplurality of rollers resting thereon and I supporting said frame, saidrollers being removable in a substantially `axial direction, While saidframe and said track arein normal relation to each e other, and abushing for each ofv said rollers, each bushing transmitting .theendtlirust of its roller directly to said frame.

2. In a turntable,` the combination of a revolving frame, a plurality ofpivots supporting said frame. a. track, a plurality7 of rollers resting.on saidl track` each roller turning' on one of said pivots` saidrollers.being removable in a substantially axial direction, While said frameand said track are in normal rela tion to each other, and a busliing foreach of said rollers, each bushing transmitting Vthe end-thrust of itsroller directly to said frame. t

3. In a. turntable, the combination of a. circular track, a pivotcentrally disposed with respect to said track, and having its axisperpendicular tothe plane thereof, a frame rotatably mounted on saidpivot, a plurality of rollers carried therebyand ruiming on said track,said rollers being removable While said frame and said track maintaintheir normal relative position. and a bushing foreach of said rollers,each bushing end of said pin, and a turntable/supported by said.twobrackets y Y Y 5. Theconibination vof a turntable roller,

a pin about which it rotates, a bushing disposed about one end of saidpin and having zinannular flange resting against one face of saidroller, a bracket supported by said bushing, removable ysecuring meansfor securing said bracket to said bushing and said pin, another kbracketsupported by the other end of said pin, and a turntable supported bysaid two brackets, said parts being separable by the successive removalof the securing means, the pin, the bushing and the roller.

6. In a turntable, the combination of a revolving frame proper, a.circular track, a plurality of rollers, resting on said track, an equalnumber of pins, yeach serving as the axle for one of said rollers, anequal number of bushings each disposed about one end of one of said pinsand having an annular flange resting against one face of one of saidrollers, an equal number of brackets each supported by one vof saidbushings and secured to said bushing and to one.of said pins byremovable means, and another equal number of brackets each supported kbythe other end of one of said pins, said two sets of brackets supportingthe turntable proper, each roller being separable by the successiveremoval of the securing means, the pin, the bushing and the roller. p Yl 7. The combination of a wheel, a pin about which it rotates, a bushingdisposed about one end of said pin and having ali annular flange restingagainst one face of the hub of said Wheel, a bracket supporting orsupported by said bushing, removable means for securing said'bracket tosaid bushing and pin, and another bracket support ing or supported bythe other end of said pin, said two brackets thus supporting or beingsupported by said Wheel proper, said parts being separable by thesuccessive remova] of the securing means, the pin, the

vbushing and the Wheel.

8. The combination of aframe, a Wheel, an axle abo'ut which it canrotate. unitary means for supporting one end of said axle and forpreventing the Wheel proper from sliding in one direction on said axle,means carried by said'frame for supporting the other end of said axle,and means for securing together said first named supporting means, saidaxle and said frame.

9. The combination of a frame, a Wheel, gether said first namedsupporting means, an axle about which it can rotate, means'for Said axleand said frame, for supporting7 supporting one end of said axle, and forsaid first named supporting means` and for 10 preventing the Wheelproper from sliding preventing' said axle from slidingin .the di- 5 inone direction on said axle, means carried rection named. 1

by said frame for supporting' the other end of said axle, and means forsecuring to- MITCHELL L. FYKSE.

